A Politician Has Commissioned a Survey of Blue-Collar and White-Collar

question 58

Essay

A politician has commissioned a survey of blue-collar and white-collar employees in her electorate. The survey reveals that 286 out of 542 blue-collar workers intend to vote for her in the next election, whereas 428 out of 955 white-collar workers intend to vote for her.
a. Can she infer at the 5% level of significance that the level of support differs between the two groups of workers?
b. What is the p-value of the test? Explain how to use it to test the hypotheses.

---

Definitions:

Catalytic Base

A substance that increases the rate of a chemical reaction by providing an alternative reaction pathway with lower activation energy, and which participates in the reaction as a base (accepting protons).

2-methylcyclohexanone

An organic compound consisting of a six-membered ring with a ketone functional group and a methyl group attached.

Enolate

An ion formed by the deprotonation of an alpha carbon of a carbonyl compound, involved in many important organic reactions.

Carbonyl

A functional group characterized by a carbon atom double-bonded to an oxygen atom (C=O).